Motor begins to die down going uphill and doesn't go faster than 40-45.
As I go uphill engine seems to lose power. Also, I can't go faster than 40 or 45 mph. Not really sure how fast since the odemeter doesn't work. But I do know that I cause a long line to start up behind me when i'm on the road of people waiting to pass. Also, it seems like there is air being realeased from somewhere. When I shut off the vehicle, i continue to hear the air release for a few seconds before it stops. If you can help please call me at 2108314042. thanks.
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Re: Motor begins to die down going uphill and doesn't go...
Luis ,sounds like a clogged catalytic converter to me. does it sound like a giant vacuum cleaner? or a jet? you have a clogged converter. check for engine misfiring as this is usually the cause of the bad converter and will not help your power problem.
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my younger brothers' truck did the same thing and there was a relay up under the dashboard that would get hot and shut of(kind of a circuit breaker unit) most of the operating systems will flash at you when only battery voltage is available which explains the lights coming on..these newer trucks also have a performance chip in the system that will act up when it gets warm also..replace this and you may be ok..let me know what happens also.. good luck.
Yes it can. The knock sensor retards the timing due to irregular levels of octane in todays gasoline, to eliminate or reduce what is called a spark knock. A malfunction could cause your car to lose power when car is under a load or uphill due to pre detonation or constantly retarded spark to the engine. If not replaced it can cause engine damage or head gasket damage. Hope this helps.
Fuel filter is the main culprit when you lose power going uphill. Going level or downhill means that the engine doesn't have to work all that hard and doesn't demand much fuel, so a partially clogged filter can usually flow enough to allow the car to run smoothly. Going uphill requires signficantly more fuel, and if the filter is clogged up, it won't be able to flow enough fuel. This will bog the car down and cause you to lose speed. Change your fuel filter.